Quality undercarriage, buckets, hydraulics and wear parts, delivered on time
Home > Products > Excavator Hydraulics > Swing Motors
Terrapart swing motor for an excavator

Terrapart

Excavator Swing Motors & Swing Drives

Astrak supplies Terrapart swing motors for excavators, stocked for machines of 6t and above. Manufactured to OEM specification by Kawasaki, Toshiba, Shibaura, Tong Myung, Mottrol and Linde, as well as machine manufacturers' own brands, each unit is backed by a 12-month warranty and 30-day returns. More than 2,000 swing motors and swing reducers are listed online by machine make and model, and stocked units ship the same day when ordered by 4:00pm CT.

  • Swing motors, also called swing drives, for excavators of 6t and above
  • Matching swing reducers, the swing gearbox, for excavators from 1t to 50t
  • A cost-effective alternative to genuine parts without compromising on fitment or performance
  • Same-day shipping on stocked units, 4:00pm CT cut-off
Shipping & Warranty
Order by 4:00pm CT and a stocked swing motor ships the same day. Swing motors and swing reducers carry a 12-month warranty, and every Terrapart hydraulic component carries a minimum 12-month warranty and 30-day returns.
What we need to identify your swing motor
The machine make, model and serial number, and a clear photograph of the tag plate on the unit. Our hydraulics team confirms the correct swing motor before it is quoted.
Swing motor or swing drive?
The same part. The hydraulic motor that turns the upper structure of the excavator is called the swing motor or the swing drive, and the gearbox beneath it is the swing reducer or swing gearbox. Whichever term you use, the make, model and serial number identify it.

Swing Motors by Machine Make

Select a make to see every swing motor and swing reducer we list for it, by model. Each page can be filtered by machine model. If your make is not shown, send us the model and serial number: the range reaches wider than this list.

Have the part number rather than the machine? Browse swing motors and reducers by OEM part number. Or browse the full swing motors and reducers collection in one list.

How to Identify a Swing Motor

The tag plate does most of the work. Send what you can and we confirm the rest before quoting.

What to sendWhere to find itWhy it matters
Machine make, model and serial numberThe manufacturer's data plate on the machine.This is what we check against the product reference guide, so it is needed on every inquiry.
Tag plate photographThe manufacturer's tag on the swing motor, or on the swing reducer if that is the unit you need.A legible tag identifies the unit directly, including the manufacturer's part number.
Swing motor, swing reducer or bothWhether the motor, the gearbox beneath it, or the complete assembly is being replaced.Decides which unit is quoted. Both are listed on every make page.

Scroll the table sideways to see every column.

Our hydraulics team checks every inquiry against the product reference guide before a swing motor is quoted, so a photograph of the tag and the serial number is usually enough.

Swing Motor or Swing Reducer?

Two parts turn the upper structure. Every make page lists both, so you can quote the one you need or the pair.

Terrapart swing motor for an excavator

Swing Motor

12-month warranty, stocked for 6t and larger excavators

The hydraulic motor that drives the swing. Also called the swing drive. Manufactured by Kawasaki, Toshiba, Shibaura, Tong Myung, Mottrol and Linde, as well as machine manufacturers' own brands.

Swing motors by make
Terrapart swing reducer for an excavator

Swing Reducer

12-month warranty, excavators from 1t to 50t

The reduction gearbox beneath the swing motor. Also called the swing gearbox or swing reduction. From Kawasaki, Toshiba, Shibaura, Mottrol and Linde, and machine manufacturer brands.

Swing reducers

Stock, Quality, Shipping and Warranty

Available From Stock

Swing motors stocked for excavators of 6t and above, with more than 2,000 swing motors and swing reducers listed by machine make and model.

OEM Quality

Manufactured to OEM specification by Kawasaki, Toshiba, Shibaura, Tong Myung, Mottrol and Linde, as well as machine manufacturers' own brands. Backed by a global tried and tested supply chain.

Same-Day Shipping

Order by 4:00pm CT and a stocked swing motor ships the same day.

12-Month Warranty

Every swing motor and swing reducer carries a 12-month warranty, with a minimum of 12 months and 30-day returns across the whole Terrapart range. Shaped by 30 years of hydraulic expertise.

BSI certified ISO 9001, ISO 14001, ISO 27001 and ISO 45001

The Rest of the Terrapart Range

Swing motors are one of four Terrapart component groups. All are manufactured to OEM specification with a minimum 12-month warranty.

Terrapart final drive for an excavator

Final Drives

Up to 24-month warranty

Final drive motors for excavators from 1t to 50t, with many drives manufactured by leading OEM suppliers including Eaton, Doosan, Nabtesco, Brevini and Trasmittal Bonfiglioli.

Final drives
Terrapart hydraulic pump for an excavator

Hydraulic Pumps

12-month warranty

Main pumps for excavators, including Kawasaki K3V and K5V units and pumps from Rexroth, Uchida, Hydromatik, Tong Myung and Mottrol.

Hydraulic pumps
Terrapart swing reducer for an excavator

Swing Reducers

12-month warranty

Swing reduction gearboxes from Kawasaki, Toshiba, Shibaura, Mottrol and Linde, and machine manufacturer brands.

Swing reducers

Swing Motor Questions, Answered

What is a swing motor on an excavator?
The swing motor is the hydraulic motor that turns the upper structure of the excavator on its undercarriage. It drives through the swing reducer, a reduction gearbox, and together they are what swing the machine. It is also called the swing drive.
What is the difference between a swing motor and a swing reducer?
The swing motor is the hydraulic motor. The swing reducer is the gearbox beneath it that reduces the motor speed and turns the upper structure. Also called the swing gearbox. Either can be replaced on its own, and every make page lists both.
Which machines do you supply swing motors for?
Terrapart swing motors are stocked for excavators of 6t and above, and swing reducers cover excavators from 1t to 50t. More than 2,000 units are listed online by machine make and model, covering makes including Hyundai, Volvo, Doosan / Develon, Daewoo, CAT, Kobelco, Case, Komatsu, Hitachi, Samsung, New Holland, JCB, John Deere, Kubota and Bobcat. Select a make above to see every unit we list for it, or send us the model and serial number if yours is not shown.
What warranty comes with a swing motor?
Swing motors and swing reducers carry a 12-month warranty, and every Terrapart hydraulic component carries a minimum 12-month warranty and 30-day returns.
How do I identify which swing motor I need?
Send the machine make, model and serial number and a clear photograph of the tag plate on the unit, and tell us whether you need the swing motor, the swing reducer or both. Our hydraulics team checks the inquiry against the product reference guide before quoting.
Who manufactures your swing motors?
Terrapart swing motors are manufactured to OEM specification by Kawasaki, Toshiba, Shibaura, Tong Myung, Mottrol and Linde, as well as machine manufacturers' own brands. Swing reducers come from Kawasaki, Toshiba, Shibaura, Mottrol and Linde, and machine manufacturer brands.
How fast can you ship a swing motor in the US?
Order a stocked swing motor by 4:00pm CT and it ships the same day. If the unit for your machine is not in stock we confirm the lead time when we quote, before you commit.

Get a Quote for a Swing Motor

Send the machine make, model and serial number, whether you need the swing motor, the swing reducer or both, and a photograph of the tag plate if you can get to it. Our hydraulics team confirms the unit against the product reference guide, prices it, and ships from stock.

I understand that my personal data will be processed in accordance with the Privacy Statement.

Astrak undercarriage support specialist

Speak to the Team

Technical advice on identifying a swing motor comes at no additional cost. Shaped by 30 years of hydraulic expertise.

Call Us

Testimonials

★★★★★

The speed of processing the order and delivery.

Daniel Fairer

Holcim Group Services Ltd

★★★★★

The service is great and Dean always delivers what he promises, quotes are quick and the response on delivery times is great.

Anthony Lane

Chippindale Plant

★★★★★

Very friendly and helpful staff. Very knowledgeable and gives great advice.

Dave Bible

Moss Civils

★★★★★

Ordered, on site, fitted and machine back in use within 24 hours. Great service, good communication and good paperwork.

George Hammersley

Roddenloft Estates